Product code: DBY420 01/1 R3A – Aastra Dialog Option Unit for 4222 4223 4224 4225 & 4425 is in stock.
The Aastra Dialog Option Unit (DBY420 01/1 R3A) allows connection to the Dialog 4222, 4223, 4224, 4225 or 4425 phones of either:-
Combined Extra Bell and Busy signal*
*Busy signal function is not appicable for Dialog 4224 Operator connected to MD110
Office Phone Shop stock a wide range of Aastra business phones.
The Aastra Dialog Option Unit (DBY420 01/1 R3A) is available new and boxed complete with a full warranty.
When contacting us about this product please quote Aastra Dialog Option Unit or DBY420 01/1 R3A.